The 'Nobody's Perfect' singer admitted on Twitter to being upset by the premature release of her 'personal art'.

The 23-year-old began by retweeting a post from fan group Team Heartbeats, which said: "Seriously whoever keeps leaking some songs from @jessiejofficial new album needs to stop? Yes they are amazing but What's the point! Have patients (sic)...#dumbasses."

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Jessie J proceeded to share her own thoughts on the issue, declaring: "Its a real shame when people feel they have the right to leak an artist songs. Its art and personal... #notcool."

When asked by a follower if she had an idea of who was behind the leaks, she replied: "I will never know. Could be anyone from a hacker to someone who has been sent the song once upon a time #Sad